Intense precipitation from the Nor'easter storm started Sunday morning, with two to four inches of downpour expected along the Mid-Atlantic Coast, which will make for soggy conditions in New York, Philadelphia and Washington, D.C.

-- Reported by msnbc.com and news services

Flood watches are in effect across the Northeast, as far south as Delaware. Two to four inches of rain could flood roads. The Weather Channel's Kelly Cass reports.